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72 lines
2.1 KiB
72 lines
2.1 KiB
4 months ago
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/*
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* blktrace output analysis: generate a timeline & gather statistics
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*
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* Copyright (C) 2006 Alan D. Brunelle <Alan.Brunelle@hp.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include "globals.h"
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static inline void latency_out(FILE *ofp, __u64 tstamp, __u64 latency)
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{
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if (ofp)
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fprintf(ofp, "%lf %lf\n", TO_SEC(tstamp), TO_SEC(latency));
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}
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FILE *latency_open(struct d_info *dip, char *name, char *post)
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{
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FILE *fp = NULL;
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if (name) {
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size_t tlen = strlen(name) + strlen(dip->dip_name)
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+ strlen(post) + 32;
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char oname[tlen];
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sprintf(oname, "%s_%s_%s.dat", name, dip->dip_name, post);
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if ((fp = my_fopen(oname, "w")) == NULL)
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perror(oname);
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else
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add_file(fp, strdup(oname));
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}
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return fp;
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}
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void latency_alloc(struct d_info *dip)
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{
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dip->q2d_ofp = latency_open(dip, q2d_name, "q2d");
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dip->d2c_ofp = latency_open(dip, d2c_name, "d2c");
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dip->q2c_ofp = latency_open(dip, q2c_name, "q2c");
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}
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void latency_q2d(struct d_info *dip, __u64 tstamp, __u64 latency)
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{
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plat_x2c(dip->q2d_plat_handle, tstamp, latency);
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latency_out(dip->q2d_ofp, tstamp, latency);
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}
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void latency_d2c(struct d_info *dip, __u64 tstamp, __u64 latency)
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{
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plat_x2c(dip->d2c_plat_handle, tstamp, latency);
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latency_out(dip->d2c_ofp, tstamp, latency);
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}
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void latency_q2c(struct d_info *dip, __u64 tstamp, __u64 latency)
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{
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plat_x2c(dip->q2c_plat_handle, tstamp, latency);
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latency_out(dip->q2c_ofp, tstamp, latency);
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}
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